Trimming apparatus



March 7, 1933. T' W MQRRlS A 1,900,000

TRIMMING APPARATUS T. W. MORRIS TRIMMING APPARATUS Filed July 22, 1929 4 .Sheets-Sheet 2 March 7, 1933.`

March 7, 1933. T w, Mom-15 1,900,000

TBIMMING APPARATUS Fled. July 22. 192.9 4 Sheets-Sheet 3 INVENTQR.

VMarch 7, 1933. T. w. MORRIS TRIMMING APPARATUS Filed July 22, 1929 4 Sheets-Sheet 4 ATTORNEYS.

Patented Mar. 7, 1933 THOMAS W. MORRIS, OF CHICAGO, ILLINOZS TRU/Mine APPARATUS Application led July 22,

l My invention relates to trimming appa-- ratus and more specifically to apparatus for trimming the overflow from a molded rubber heel.

One of the objects of my invention is to provide apparatus of this character which will trim the overflow from the rubber heel with very little attention on the part of the operator.

A. further object is to provide apparatus of this character whichk will automatically guide and direct the heel in such a way that the entire outline of the'heel willl be trimmed without any attention on' the part ot the operator.

A further object is to provide improved details of construction in apparatus of this character.

urther objects will appear from the description and claims. y

In the drawings, in which an embodiment of my invention is shown- Figure 1 is a perspective view of the apparatus for trimming a rubber heel;

Fig. 2 is a plan view, parts of the apparatus being in horizontal section;

Fig. 3 is a side elevational view of the cutters and associated parts;

Fig. if is a section on the line 4 4 of Fig. 3;

Fig. 5 is a section on the line 5 5 of Fig. 3

Fig. 6 is a detailed View of the bracket for supporting the pressure roller;

Fig. 7 is a plan view of the construction employed for guiding the heel and for trimming the sides and rear edge; andA Fig. 8 is a section on the line 8-8 of' FigQ.

Referring to the drawings in detail, the construction shown comprises a trimmer l having a pair of cooperating cutting` discs 2 and which draw the heel 4 towards the cutters, a pair of spring-pressure rollers 5 Jfor engaging 'the upper surface of the heel to hold the heel down as it is being trimmed, a turntable 6 on which the heel is supported as it is being trimmed, pivotally mounted means 7 for guiding the heel as the cutters are acting on it so that the entire outline of the heel, with the exception of the'breast 8, wili be trimmed, said guide means comprising a roller 9' for engagingv the untrimmed 1929. Serial No. 30,135.

side of the heel opposite the side on which the cutter initially acts, an abutment member 10 engaged by the breast of the heel forining a spring fulcrum about which the heel n turns as the rear of the heel is being trimmed and a second abutment member 11 engaged by the trimmed side of the heel as the oppositeside of the heel is being trimmed, a conveyor 12 for carrying the heel from said first trimmer, a second conveyor 13 running along# side said first conveyor,fa guide and defiector member 1d above the first conveyor for deflecting the heel from the first conveyor to the second conveyor and causing the heel to be turned to present the breast portion' in position Jfor trimming, a second trimmer 15 for trimming the breast of the heel, similar in all. respects to the first trimmer 1, adjustable guide means 16 above the second conveyor 13 I for engagingv the breast of the heel and steerin g it to the second trimmer, a: pair of springpressure rollers 5 for engaging the upper side of the heel as the breast is being trimmed, and a spring-pressed roller guide 17 for enr gaging the end of the heel opposite thebrea'st for holding the' breast in proper relation to the trimmer.

Before describing in detail the construction, I will now briefly outline the operation. An operator places the heels 4 to be trimmed one-by-one in proper relation to be acted on by the iirsttrimmer. The overliow 18 is seized between the edges of the two cutting discs 3 and 4 which trim the overiiow close to the body of the heel7 the spring-pressed roller 9 holding the body of the heel over against the edge of the upper cutting disc 2, as shown in Fig. 5. As the cutting discs draw the heel rearwardly the breast of the heel engages first the roller 9 and neXtthe adjustable stop 10 on the pivoted guide member 7 as will be understood by referring to Fig'. 7, the heel turning in a counterclockwise direction as viewed in this figure from the full line to the dotted-line position, the'pivoted guide member Tin the meantime swinging from the full-line to the dotted-line position, about the pivotal point 19 against the action of' the coil tension spring 20 which tends to hold the pivoted' guide member in the full- CII line position. The turntable 6 on which the heel rests facilitates this turning movement of the heel. As the heel turns, the trimmed side will come into engagement with the i serrated edge 21 of the adjustable abutment 11 and will thereafter engage the roller 22 on this abutment 11, parts being then substantially as shown in dotted lines in Fig. 7. 1n this position the trimmed rear edge of the heel will be resting on the traveling conveyor 12 and the action of this traveling conveyor, together with the drawing action of the cutting discs, will cause the heel to be moved bodily rearward, the roller 22 facilitating this rearward movement, and the heel will finally be carried away on this traveling conveyor. A. roller 23 is provided to engage the upper surface of the heel as it is traveling along` on the conveyor to prevent it from becomingimproperly located and a pair of rollers 24 are provided, one on each side of the heel, to assist in keeping the heel in its proper position on the belt 12. As the heel travels rearwardly on the conveyor thevportion thereof opposite the breast portion comes into engagement with the inclined adjustable friction guide 14 which deflects the heel from the first conveyor over onto the second conveyor 13, this transfer at the same time giving the heel a counterclcckwise movement of rotation as viewed in Figs. 1 and 2 through about 90, so that the heel comes into engagement with the roller guides 16 of the second trimmer 15, substantially as shown in Fig. 1. Here the roller guides bring the overflow on the untrinnned breast of the heel into proper position to be engaged by the cutting edges of the two cutting discs 2 and 3 of the second trimmer and also steering the heel back from the second conveyor 13 onto the first conveyor 12. rllhe action of this conveyor, together with the drawing action of the cutting discs, causes the heel to move rearwardly between the upper cutting disc 2 and the spring-pressed guide rollers 25. These spring-pressed guide rollers hold the breast of the heel over against the edge of the upper cutting disc 2 substantially as shown in Fig. so that in this operation the entire breast of the heel is trimmed. Thereafter the conveyor carries the completely trimmed heel rearwardly to the end of the conveyor from which it is discharged.

Coming now to a description of details of construction, the cutting discs themselves are in general of the type disclosed in my prior Patent No. 1,361,531 and will not be described in detail. ri`hey are driven in any suitable manner from a motor 26 by means of belts 27, pulleys 23 and suitable intermediate transmission. l have found that the passage of the heel through the first trimmer is facilitated by the provision of a small roller 29 just above the upper cutting disc 2 as shown in Figs. 3, 4 and 5, this roller being mounted on a bracket 30 which is adjustably mounted on a bar 31 secured to the bearing bracket 32 in which the cutter shaft 33 is mounted. This roller may be adjusted laterally by means of the two set screws 34 threaded through ears 35 on the bracket 30 and engaging the edges of the bar 31, the bracket being secured, when adjusted, by means of a clamping screw 36 extending through a slot 37 in the bracket 30 and threaded into the bar 31 as shown in Fig. 4. The roller may be adjusted vertically by means of the clamping screws 38 extending through slots 39 in the bar 51 and threaded into the bearing bracket 32 as shown in Fig. 3.

The turntable 6 on which the heel rests as it is being trimmed may be rotatably mounted in an opening 40 in the supporting table 41 and may be provided with an anti-friction bea-ring 42, as shown in Fig. 8, seated in a supporting bracket 43 secured to the under side of the table 41.

rEhe series of rollers 44 for steering the heel in the proper position with respect to the cutting discs 2 and 3 may be mounted on a roller support 45 which is adjustable laterally by means of lock nuts 46 a cliunping screw 47, as shown in Fig. 2.

rl`he pressure rollers 5 which engage the upper surface of the heel as it is being trimmed may be mounted on a horizontal extension 48 of a supporting post by means of the spring bracket construction shown in 6. Flach roller is mounted in a forked bar 49 secured to a bearing bracket 50 rockably mounted on the horizontal post 43. The roller is pressed downwardly by means of a coil compression spring 51 seated in a spring barrel 52, one end of the spring enga-ging a plunger portion 53 on the bar 49 which fits loosely in the spring barrel. The other end of the spring is engaged by the end of screw 54 threaded into the spring barrel by means of which the tension of the spring may be adjusted. The downward movement of the roller is limited by a stop screw 55 threaded into an arm 56 on the bracket 57, the point of this screw engaging the bar 49. This bracket 57 may be clamped on the hoi .tontal post 4S by means. of a clamping screw By adjusting the screw 54, he desired spring pressure on the upper surface of the heel may be obtained and by adjusting the screw 55 the roller will be held at such a height when no heel is under the roller that when the neXt heel comes along it will readily pass un derneath the roller and be properly held thereby.

The yieldable pivotally mounted guide means 7 comprises a support 59 pivotally mounted at 19, a coil tension spring 20, one end of which passes around a pulley member 60 secured to rock with the support 59 and the other end of' which is secured to a pin 61, a stop member 62 on` the rockable guide 59 for engagement with an adjust-v able stop screw 63, a roller 9 for engaging the untrimmed 'side of the heel as the heel is rst presented to the cutters, an anti-friction roller 64- and an adjustable abutment member l() for engaging the breast ot the heel as the curved rear edge of the heel is being trimmed,

slot 67 in the abutment member and mounted on the rockable guide 59.v

One of the anti-friction rollers 24 is adiustable by means of a Wing nut 68 threaded onto a stud extending through a slot 69 in the supporting bar 70 on Which this roller is mounted.

In order to assist in keeping the heel in proper position, the roller 71 is provided adjacent the cutter 3, this roller being ad justable by means of a Wing nut 72 threaded onto a stud extending through a slot 73 in the bracket 74 on which the roller 71. is mounted.

The inclined guide and deflector le is adjustably mounted by means of a Wing nut 75. threaded on a stud extending through a slot 76 in the bar on Which this deflector is mounted. The deflector may be covered WithY a suitable material Which will have thedesired. frictional qualities, such as soft leather' or the like.

The series of guide rollers 77 for steering the heel into proper relation With respect to the cutters of the second trimmer' may be mounted in the same manner as the rollers i4-L for the first trimmer. The spring-pressed guide rollers 25 for holding the breast of the heel over against the cutter 2 may be mounted on a roller support 78 pivotally mounted at 79 on a rock bar 80 and held in adjusted position by means of a screw 8l extending through a slot 82 in the roller support 78. The rock bar is held toward the cutters by means of a coil. tension spring 83, the

` bar being pivotally mounted at 84 and limited in movement to-Ward the cutters by'means oi an adjusting stop screw 85 threaded through a bracket 86 and having its pointV engaging the end of the rock bar 80. The rock bar 80 itself is adjustable from front to rear by means of the Wing nuts 87 threaded ontor studs extending through a slot 88 in the base plate 89 on Which thev rock bar 8O is pivotally mounted.

- The conveyors-l2 and 13 are driven.l in any suitable manner, the first conveyor 12 being shown as driven by a sprocket chain- 90 from theY shaft 91 ot the vertical cutting disc 3 of the rear trimmer and the second conveyor belt 13y bein-g shown as driven by belt 92 and pulleys 93 from the shaft. 94k of the vertical cutter :3' ofi'. thev irst trimmer. l

I claim:

l. Apparatus for trimming the overflow from a rubber heel comprising a trimmer having rotating cutting edges whichy draw the Work toward the cutters, a spring pressure roller for engaging the upper surface of the heel toV hold the heel down as it is being trimmed, yi'eld'able pivotally mounted means for guiding said heel as said cutters are vacting on it sothat the entire outline of the heel With. the exception of the breast Will be trimmed, said guide means comprising a roller for engaging the untrimmed side of the heel opposite the side on Which the cutter initially acts, an abutment member engaged by the breast of the heel forming a spring fulcrum about which the heelf turns as the rear of the heel is being trimmed, and a second abutment member engaged by the trimmed side of the heel as the opposite side of the heel is being trimmed, a turntable for supporting the heel as it is being acted on by said trimmer, a conveyor for carrying said heel :tromV said guide and trimming means,

`a second conveyor running alongside said first' conveyor, guiding and deflecting means above said first conveyor for deflecting the heeli from said first conveyor to said second conveyor and causing the heel to be turned to. present the breast portion in position for trimming, saidI deflector comprising a frictional abutment engaofed by theheel extendingobliquely to the rst conveyor, a second trimmer for trimming the breast of the heel, adjustable guide means above the second conveyor for engaging the breast of the heel and steering it to the trimmer, a spring pressure roller for engaging the upper surface of the heel as it isfbeing trimmed to hold thev heel down on the conveyor, and a spring-pressure roller for engaging the end of the heel opposite the breast for holding the breast of th heel in proper relation to the trimmer.

2. Apparatus for trimming the overflow from a rubber heel comprising a trimmer, means for guiding said heel so that the entire outline of the heel" withv the exception of the breast Will be trimmed, a second trimmer for trimming the breast of the heel, means for guiding said heel so that the breast Will be trimmed, and means for conveying the heel from the first trimmer to the second trimmer. y

3. Apparatus. for trimming the overflow from' a rubber heel comprising a trimmer, and means for guiding said heel so that the entire outline of the:Y heelrv With: the exception of the breast will be trimmed, said trimmer having rotating cutting edges which draw the work toward the cutters, and said guiding means comprising yieldable pivotallymounted means for guiding said heel as said cutters are acting on it, a roller for engaging the untrimmed side of the heel opposite the side on which the cutter initially acts, an abutment member engaged by the breast of the heel forming a spring fulcrum about which the heel turns as the rear of the heel is being trimmed, and a second abutment member engaged by the trimmed side of the heel as the opposite side of the heel is being trimmed.

ll. Apparatus for trimming the overflow form a rubber heel comprising atrimmer,and means for guiding said heel so that the entire outline of the heel with the exception of the breast will be trimmed, a conveyor for carrying said heel-from said guide and trimming means, a second conveyor running alongside said first conveyor, guiding and defiecting means above said iirst conveyor for deiiecting the heel from said first conveyor to said second conveyor and causing the heel to be turned to present the breast portion in position for trimming, said dellector comprising a frictional abutment engaged by the heel extending obliquely to the first conveyor, and a second trimmer for trimming the breast of the heel. i

5. A rubber heel trimming apparatus comprising rotatable trimming knives which draw the work forward as they cut, and means for controlling the heelin its movement comprising a yielding pressure meinber alongside which the side edge of the heel travels in its movement, said pressure member being engageable with the untrimmed side edge of the heel opposite the side kon which the trimming knives intially act for pressing the heel toward the knives.

6. A rubber heel trimming apparatus com- `prising rotatable trimming knives which draw the work forward as they cut, and means for controlling the heel in its movement comprising a pivotally mounted yielding pressure member alongside which the side edge of the heel travels in its movement, said pressure member being engageable with the untrimmed side edge. of the heel opposite the side on which the trimming knives initially act for pressing the heel toward the knives.

7. A rubber heel trimming apparatus comprising rotatable trimming knives which draw the work forward as they cut, and means for controlling the heelV in its movement comprising an anti-friction yielding pressure member alongside which the side edge of the heel travels in its movement, said pressure member being engageable with the untrimmed side edge of the heel opposite the side on which the trimming knives initially act for pressing the heel toward the kinves.

8. A rubber heel trimming apparatus comprising rotatable ltrimming knives which draw the work forward as they cut, and means for controlling the heel in its movement comprising a pivotally mounted antifriction pressure member alongside which the side edge of the heel travels in its movement, said pressure member being engageable with the untrimmed side edge of the heel opposite the side on which the trimming knives initially act for pressing the heel toward the knives.

9. A rubber heel trimming apparatus comprising rotatable trimming knives which draw vthe work forward as they cut, and means for controlling the heel in its movement comprising a yieldable swinging fulcrum member engageable with the breast edge of the heel in its movement about which fulcrum the heel swings, said fulcrum member swinging to accommodate itself with the movement of the heel.

10. A rubber heel trimming apparatus comprising rotatable trimming knives which draw the work forward as they cut, and means for controlling the heel in its movement comprising a yieldable swinging member provided with a yielding pressure member alongside which the side edge of the heel travels in its movement, said pressure member being engageable with the untrimmed side edge of the heel opposite the side on which the trimming knives initially act for pressing the heel toward the knives, and said swinging member being also provided with a fulcrum member engageable with the breast edge of the heel in its movement about which fulcrum the heel swings, said fulcrum member swinging toaccommodate itself to the movement of the heel.

ll. A rubber heell trimming apparatus comprising rotatable trimming knives which draw the work forward as they cut, and means for controlling the heel in its movement comprising a yieldable swinging member provided with a yielding pressure member alongside which the side edge of the heel travels in its movement, said pressure member being engageable with the untrimmed side edge of the heel opposite the side on which the trimming knives initially act for pressing the heel toward the knives, and said swinging member being also provided with a fulcrum member engageable with the breast edge of the heel in its movement about which fulcrum the heel swings, said fulcrum member swinging to accommodate its-elf to the movement of the heel, and anti-friction means engaging the under face of the heel in its movement.

l2. A machine for trimming articles of non-circular periphery, said machine comprising a turntable for supporting the work, a rotary cutter at one side thereof adapted to trim and advance the work, conveyor means adjacent the turntable, in such relation thereto as to partially underlie the article at the conclusion of the trimming thereof, for removing the work from the turntable at the conclusion of the trimming operation, and yielding means adapted to be positioned by the contour of the article during the trimming operation for assisting the cutter in effecting movement of the work from the turntable onto the conveyor.

13. Apparatus for trimming the overflow from a rubber lieel, said apparatus comprising a trimmer, a turntable adjacent the trimmer for supporting a heel to be trimmed, means for guiding said heel so that the entire outline of the heel with the exception of the breast will be trimmed, a second trimmer for trimming the breast of the heel, means for guiding said heel so that the breast will be trimmed, and means for conveying the heel from the first trimmer to the second trimmer.

14. Apparatus for trimming the overflow from a rubber heel, said apparatus comprising a trimmer, a turntable adjacent the trimmer for supporting a heel to be trimmed, means for guiding said heel so that the entire outline of the heel with the exception of the breast will be trimmed, a conveyor for carrying said heel from said guide and trimming means, a second conveyor running alongside said first conveyor, guiding and deflecting means above the first conveyor for deflecting the heel from said first conveyor to said second conveyor and causing the heel tobe turned to present the breast portion in position for trimming, said deflector comprising a frictional abutment engaged by the heel extending obliquely to the first conveyor, 'and a second trimmer for trimming the breast of the heel.

15. In a heel-trimming machine, the combination of a support for a heel to be trimmed, a rotary cutting adapted to apply a peripheral impelling force tothe margin of a heel as it trims the same, yielding means engaging the heel at the opposite side thereof from the cutter adapted normally to resist forward feeding of the work and causing the latter to rotate under the impelli'ng force, and a roller bearing against the upper face of the heel between the cutter and the aXis of rotation of the heel.

16. In a heel-trimming machine, the combination of a support for a heel to be trimmed, a rotary cutter adapted to apply a peripheral impelling force to the margin of a heel as it trims the same, means urging the heel to-ward the cutter and causing it to rotate under the impelling force, and a pair of rollers engaging the upper face of the heel at opposite sides of its axis of rotation.

17. Apparatus for trimming the overflow from a rubber heel, said apparatus comprising a trimmer, means including a turntable support for the heel and a hold-down roller engaging the upper face of the heellfor guiding said heel so that the entire outllne of the heel with the exception of the breast will be trimmed, a second trimmer for trimming the breast of the heel, means for guiding said heel so that the breast will be trimmed, and means for conveying the heel from the rst trimmer to the second trimmer.

18. Apparatus for trimming the overflow from a rubber heel, said apparatus comprising a trimmer, means for maintaining a heel in operative relation to the trimmer while trimming the o-veriiow therefrom around a part of the periphery of the heel, a second trimmer for continuing the trimming of the heel, and means for conveying the heel from the first trimmer to the second trimmer.

In Witness whereof, I have hereunto sub scribed my name.

THOMAS W. MORRIS. 

